Spring and device for stabilizing human or animal bone

Abstract

Disclosed is a spring for a device for stabilizing bones. The spring is designed as a leg spring that includes a spring coil with at least one turn and, at the end, a first and a second leg, which project beyond the periphery of the turn. At its end, at least one leg includes a rod-shaped end piece that has a three-dimensional structure in the form of a turn or a peripheral leaf or lip. Also disclosed is a device for stabilizing bones, which includes a spring, a bone plate that includes means for securing the bone plate to the three-dimensional structure in the form of a turn or a peripheral leaf or lip, and a clamping element that has at least one hole for accepting a bone fixation element as well as a channel through which one of the two legs of the spring can be guided.

1 . A spring for stabilizing bones, wherein the spring is designed as leg spring, which includes a spring coil with at least one turn and, a first leg having an end and a second leg having an end, wherein each of said first leg and said second leg projects beyond a periphery of the turn,
 wherein   the end of at least one of said first leg and second leg, includes a rod-shaped end piece, which has a three-dimensional structure in the form of a thread or a peripheral lamella or lip.   
     
     
         2 - 9 . (canceled) 
     
     
         10 . The spring according to  claim 1 , wherein the spring coil includes several spring turns. 
     
     
         11 . A device for stabilizing bones in human or animal body, comprising:
 a spring according to  claims 1 ; and   a bone plate having at least one plate hole for receiving a bone securing element and means for securing the bone plate to one of the first leg or the second leg, which means can engage with the three-dimensional structure; and wherein the device additionally comprises:
 clamping element having at least one hole for receiving a bone securing element and a channel for the passage of the other one of the first leg or second leg of the spring, 
 or 
 a second bone plate having at least one plate hole for receiving a bone securing element and means for securing the bone plate to the other one of the first leg and the second leg, which can engage with the three-dimensional structure. 
   
     
     
         12 . The device according to  claim 11 , wherein the first and/or the second bone plate include(s) a cavity with an inner thread, which can engage with the outer thread on the end piece of the first and/or second leg. 
     
     
         13 . The device according to  claim 12 , wherein the plate hole in the first and/or second bone plate has a hole axis, and a longitudinal axis of the cavity is arranged perpendicular to the hole axis. 
     
     
         14 . The according to  claims 11 , wherein the device has a first and a second bone plate and, in addition, at least one clamping element having at least one hole for receiving a bone securing element and a channel for the passage of one of the first leg or the second leg of the leg spring. 
     
     
         15 . The device according to  claim 11 , wherein at least one of the bone plates includes a first section having at least one plate hole, which is connected to the end piece of the first leg or second leg, and a second section having at least one plate hole, wherein the second section is angled relative to the first section. 
     
     
         16 . The device according to  claim 15 , wherein the plate hole in the first section has a hole axis, and the second section is angled relative to a plane orthogonal to the hole axis. 
     
     
         17 . (canceled) 
     
     
         18 . The device according to  claim 11 , wherein the clamping element is designed as a clip, so that the end piece of one of the first leg or the second leg can be snapped into the channel in the clamping element. 
     
     
         19 . The device according to  claim 11 , wherein the spring is made from a material that is different from the bone plates. 
     
     
         20 . The device according to  claim 11 , wherein the device additionally includes bone screws. 
     
     
         21 - 25 . (canceled) 
     
     
         26 . A method for stabilizing a long tubular bone or a vertebral column, comprising:
 producing an incision in an area of a bone section to be treated;   preparing epaxial muscles and osseous attachment sites for securing an implant;   performing a lateral retraction of muscle masses;   introducing the implant through the incision;   securing the implant on the bone section, and   closing the incision.   
     
     
         27 . The method according to  claim 26 , further comprising, prior to producing the incision, diagnosing the degree and the type of compression by means of an imaging investigation. 
     
     
         28 . The method according to  claim 26 , further comprising, prior to producing the incision, determining the maximum stretching and bending of the vertebral column segment to be treated. 
     
     
         29 . The method according to one of  claim 26 , further comprising, after securing the implant on the bone section, performing a surgical decompression within the vertebral column channel. 
     
     
         30 . The method according to  claim 26 , wherein the implant is a device according to  claim 11 .